Phys. Rev. Lett. 96, 110407 (2006) [4 pages]Photon Regeneration from Pseudoscalars at X-Ray Laser FacilitiesSee Also: Editorial Note Received 5 December 2005; published 24 March 2006 Recently, the PVLAS Collaboration reported an anomalously large rotation of the polarization of light in the presence of a magnetic field in vacuum. As a possible explanation, they consider the existence of a light spin-zero particle coupled to two photons. We propose here a method of independently testing this result using a high-energy photon regeneration experiment (the x-ray analogue of “invisible light shining through walls”) using the synchrotron x rays from a free-electron laser. With such an experiment the region of parameter space implied by PVLAS could be probed in a matter of minutes. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.110407
DOI:
10.1103/PhysRevLett.96.110407
PACS:
14.80.−j, 41.50.+h
See AlsoEditorial Note: E. Zavattini, G. Zavattini, G. Ruoso, E. Polacco, E. Milotti, M. Karuza, U. Gastaldi, G. Di Domenico, F. Della Valle, R. Cimino, S. Carusotto, G. Cantatore, and M. Bregant PVLAS Collaboration, Editorial Note: Experimental Observation of Optical Rotation Generated in Vacuum by a Magnetic Field [Phys. Rev. Lett. 96, 110406 (2006)], Phys. Rev. Lett. 99, 129901 (2007). |
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